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M-Bab / linux-kernel-amdgpu-binaries

Kernel binaries (amd64) of amd-staging with DAL and latest security patches
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clinfo: Segmentation fault #30

Closed rhlug closed 7 years ago

rhlug commented 7 years ago

Fresh install of 17.04, installed the 4.12.14+ ubuntu kernel and firmware packages, and installed rocm-opencl rocm-opencl-dev packages.

$ /opt/rocm/opencl/bin/x86_64# uname -a Linux localhost 4.12.14+ #1 SMP Wed Sep 20 21:21:54 CEST 2017 x86_64 x86_64 x86_64 GNU/Linux

$ /opt/rocm/opencl/bin/x86_64# lspci | grep VGA 23:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480] (rev cf)

$ /opt/rocm/opencl/bin/x86_64# ./clinfo Segmentation fault (core dumped)

Not sure how to proceed.

dualbus commented 7 years ago

On Thu, Oct 05, 2017 at 01:11:35PM +0000, rhlug wrote: [...]

/opt/rocm/opencl/bin/x86_64# ./clinfo

Segmentation fault (core dumped)

Not sure how to proceed.

You can try generating a backtrace (https://wiki.ubuntu.com/Backtrace) by running clinfo under gdb.

rhlug commented 7 years ago

Pretty sure root cause is..

amdgpu 0000:23:00.0: kfd not supported on this ASIC

I tried an RX470, RX570, and RX Vega 64. All of them generate that in dmesg. After switching back to 4.11.0-kfd-compute-rocm-rel-1.6-148 kernel, I have no problems.

M-Bab commented 7 years ago

Yeah ... ROCm won't work with this kernel. ROCm is a currently non-mainlined kernel addition just like DC is. I am not sure which Kernel have both patches included - but I am also not sure how stable the result of these 2 heavy-development patch-sets would be.

I am still planning to build a little debian package that provides JUST the opencl libs from the amdgpu-pro driver as a compromise to get DC and OpenCL at the same time.

rhlug commented 7 years ago

Okay no problem. Thanks.